Double-slit photoelectron interference in strong-field ionization of the neon dimer

Double-slit photoelectron interference in strong-field ionization of the neon dimer

(2019)10:1 | Maksim Kunitski, Nicolas Eicke, Pia Huber, Jonas Köhler, Stefan Zeller, Jörg Voigtsberger, Nikolai Schlott, Kevin Henrichs, Hendrik Sann, Florian Trinter, Lothar Ph.H. Schmidt, Anton Kalinin, Markus S. Schöffler, Till Jahnke, Manfred Lein, Reinhard Dörner
The article reports on the observation of two-center interference in the molecular-frame photoelectron momentum distribution upon strong-field ionization of the neon dimer. The experiment, conducted using a 40 fs, 780 nm laser field, demonstrates that double-slit interference persists even under conditions of strong-field ionization, despite potential challenges such as tunneling ionization and the deformation of the electron's phase front by the Coulomb field of the parent ion. By post-selecting ions based on their symmetry, the researchers were able to observe both *gerade* and *ungerade* types of interference. The measured photoelectron distributions are well-reproduced by theoretical models based on two-center interference, confirming the robustness of this phenomenon. The study also explores the dependence of the interference on the internuclear distance, providing insights into the molecular structure and ionization probability. This work advances the understanding of molecular ionization and opens new avenues for probing fundamental quantum mechanical concepts.The article reports on the observation of two-center interference in the molecular-frame photoelectron momentum distribution upon strong-field ionization of the neon dimer. The experiment, conducted using a 40 fs, 780 nm laser field, demonstrates that double-slit interference persists even under conditions of strong-field ionization, despite potential challenges such as tunneling ionization and the deformation of the electron's phase front by the Coulomb field of the parent ion. By post-selecting ions based on their symmetry, the researchers were able to observe both *gerade* and *ungerade* types of interference. The measured photoelectron distributions are well-reproduced by theoretical models based on two-center interference, confirming the robustness of this phenomenon. The study also explores the dependence of the interference on the internuclear distance, providing insights into the molecular structure and ionization probability. This work advances the understanding of molecular ionization and opens new avenues for probing fundamental quantum mechanical concepts.
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[slides and audio] Double-slit photoelectron interference in strong-field ionization of the neon dimer